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Sunday, June 7, 2009

CM Basics

The ICM (Internal Concurrent Manager) controls all of the otherconcurrent managers.

The Standard Manager accepts any and all requests. It has no predefined specialization rules and is active all the time. It is not recommended to add specialization rules to the standard manager as it can cause problems.

The Conflict Resolution Manager resolves conflicts, such as request incompatibilities.

STARTING THE CONCURRENT MANAGERS

There are two ways to determine if the concurrent managers are up and running:

1. Log in to applications as System Administrator responsibility and navigate to the concurrent manager administration page (Concurrent, Manager, Administrator) and under the processes column if the target and actual column equal the same number (above 0) this means the managers are up and running.

2. You can also go into SQL*PLUS as APPS and run the following script:

DEACTIVATE tells the managers to complete processing of any running requests before terminating. This is a cleaner way of bringing down the managers.

ABORT tells the managers to terminate the managers immediately. When the concurrent managers are terminated through the abort command, the jobs that they were running will be returned to pending status.